Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Rebuilt--fires once, won't restart 7044203

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67elco:
Hi everyone, I come from the LS platform, haven't had a carb'd car in almost 20 years so pardon my ignorance.

67 El Camino, 327, 4 speed, engine is bone stock. Previous owner put this carb on but was missing all the choke components.  When I bought it, it ran fine, until one day it left me stranded and fuel was gushing out of the choke mechanism on the passenger side. I spoke to Cliff and bought one of his kits and installed it.  I set the float at 1/4" below the max height.  Idle mixture screws are about 2 1/2 turns out, choke mechanism parts are all installed and adjusted per the book.  Did the bushing kit on the primary blades, made sure everything was indexed correctly, very minimal gaps around the blades when held up to the light.

Car turned over on the first crank, but ran very poorly for about 15-20 seconds and then shut off. I did not see any major dripping when looking down the choke plate at the boosters, but a tiny bit of fuel on them. I also noticed the gasket was damp with fuel.  Tried to restart 3-4 more times, with no luck, wouldn't even sputter a bit like it's trying to catch. Made sure the fuel tank has fuel in it as well.

I have not messed with the timing as it ran fine prior to the rebuild.  I did replace the plugs as they looked fouled. I don't want to keep trying to crank it over as I don't want to wash out the cylinders with fuel. Running out of ideas on what to adjust to get this thing running correctly.

Kenth:
Sounds like the choke pull-off is not working.

67elco:
I replaced the choke pull off, hose, and the rods with all new parts. This has a divorced choke, and I also l replaced the coil on the intake manifold.

What testing can I do to ensure it's working properly?

Kenth:
The p-o should open the choke blade about a quarter of an inch at lower (front) edge at cold start.

67elco:
I hooked up a vacuum tester to the port on the pull off and it retracts fully. I had to manually move the lever though to get the cam to engage and open the choke about 1/4".  I then cranked the car over and it started and ran for a few minutes. It was running super rich and adjusting the idle mixture screws did nothing. It was idling a bit high, and as it was getting warmer I was adjusting the idle down when it stalled and wouldn't restart.

The previous owner had a small spacer between the carb and intake manifold which I did not re-install originally.  I added that back on, as I was thinking that maybe there was vacuum leak and it still wouldn't crank. When it did run, the gauge wasn't moving (plugged into the passenger front port).

I did notice that when you press the throttle down, it does not set the choke at a 1/4". If I manually move the lever it'll set, but the moment I press the throttle, it'll shut the choke completely. I've attached some photos of the linkage on that side, I'm assuming something must be wrong in how I have everything routed.

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